Adjuster for casement windows and the like



June 22 1926. 1,589,854

N, B. HURD ADJUSTER FOR CASEMENT WINDOWS AND THE LIKE Filed Feb. 5, 1926 INVENTOR ATTORN EY $1 Ill i atented lane 2 warren stares series.

NCRMAN B. non-n, or New BRITAIN, CONNECTICUT, ASSIGNOR 'ro THE AMERICAN HARDWARE CORPORATION, or new BRITAIN, CONNECTICUT, A eonronnrion or CONNECTICUT.

anans'rnn ro'n CAsEMENr WINDOWS AND ririi LIKE.

Application filed February 3, 1926. Serial No. 85,792.

This invention relates to so called adjusters for casement windows and the like. The object of the invention is to provide a simple, easily applied and easily adjusted device, which functions to frictionally hold a casement window closed, or opened at any desired angle.

In the accompanying drawing- Fig. 1 is a plan view on a small scale of a casement window showing my adjuster ap plied thereto;

Fig. 2 is a relatively enlarged view, partly in section, of said adjuster;

Fig. 3 is a longitudinal, sectional view of certain parts on a still larger scale;

Fig. 1 is a View similar to Fig. 3 showing the same parts in a different position;

Fig. 5 is a plan view of one end of a detail.

1 represents a casement door or window hinged at 2 in the usual manner to a casing. The adjuster comprises a tube or cylinder 3, which may be pivotally secured at one end to the window casing 4: as by means of a bracket 5. 6 is a rod which is pivotally secured to the window frame as by means of a bracket 7. 8 represents a removable pivot screw for securing said rod 6 to said bracket 7. The rod 6 extends into the tube 3, and is provided with a novel form of friction head therein, the function of which is to frictionally bear against the inner wall of the tube in such a manner as to require a predetermined amount of force to cause the rod 6 to slide or move to and fro in the tube 3. This frictional resistance may be varied to any desired degree by the mecha nism which I shall now proceed to describe.

The head comprises two shoes 9-10 which are each semi-circular in cross-section, so as to conform to the inner cylindrical wall of the tube 3. On the inside of the shoe 10 is formed an inclined shoulder 11. 12 is what I will term a wedge block having an incline at its forward end corresponding substantially to the incline 11. 1 1 is a spring which bears against the squared rear end of the wedge block 12. 15 is a screw on the inner end of the rod 6. 16 is a head on the front end of the screw 15 which head bears against the spring 1 1. The shoes 9l0 are so shaped at one end that each may be threaded to correspond with the screw threaded portion 15 of the rod 6.

Ience, when the shoes are in place (Figs. 3 and 4), the turning of the rod 6 will cause the screw 15 to turn within the threaded parts of the shoes and to move to and fro relatively thereto. A forward motion of the screw relatively to the friction head applies pressure to the spring 1 1, which in turn applies its pressure to the wedge member 12, which, acting against the incline 11, produces a wedging action tending to force the shoes 9 and 10 apart and against the inner cylindrical wall of the tube 3, as shown in Fig. 1. The degree of pressure of the shoes 91O against the wall of the tube may be varied by turning the rod 6 and varying the tension of the spring 14;. When the adjuster is in place the operator merely removes the screw 8 so as to leave the rod 6 free to turn. He then turns the rod until the desired frictional engagement is effected between the shoes 910 and the inner wall of the tube. He then reconnects the rod 6 with the bracket 7 and replaces the pivot screw 8. By providing the spring l t, a smooth, telescopic action is afforded even though the friction head may encounter irregularities in the in ner wall of the tube. Furthermore, by the presence of the spring, the shoes will never jam so as to prevent the sarts from being telescoped. In some instances, I may desire to insert a wear-piece 17 between the wedge 12 and the incline 11. In Fig. 3 I have shown the rod 6 backed off suiiiciently far enough to leave the shoes 910 so free that the parts may be slid to and fro without substantial friction; whereas, in Fig. l I have shown the rod 6 projected to a position wherein the friction shoes are in frictional engagement with the tube.

In operation, when the parts have bee applied to a casement window or door, as indicated by solid lines in Fig. 1, the holder will tend to hold the window closed. So also, if the window is opened to the position, indicated in dotted lines, the holder will operate to frictionally hold the window at this or any desired angle of adjustment until suiiicient pressure is applied to overcome the frictional drag of the shoes within the tube.

What I claim is:

1. In a holder of the character described, a tube, a rod slid-able therein, a pair of friction shoes, a screw thread connection between said shoes and the inner end of said rod, edging means between said shoes for separating the same, said Wedging means being operable by the rotation 01"; said rod Within said shoes.

2. In a holder such as described in claim 1, with a spring interposed between said rod and said shoes.

In a holder of the character described, a tube, a rod slidable therein, a pair of friction shoes therein, a screw thread connection between said shoes and the inner end of said rod, wedging means between said shoes for separating the same, comprising a shoulder on the inner-side of one of said shoes and a wedging member coacting, with said shoulder, one of said parts being beveled, said screw coacting' with said wedging means.

4. In a holder such as described in claim 3, with a. spring located between said Wedging member and said screw.

5. In a holder of the character described, a tube, a rod slidable therein, friction shoe means connected to and movable by said rod and adapted to frictionally engage the inner surface of said tube, wed ing means Within said friction shoe means ror moving the latter into engagement with said tube, and means of connection between said rod and Wedging means for Varying the force of said Wedging means acting upon said friction means.

6. In the combination defined in claim 5, and resilient means acting upon said wedgingmeans.

NORMAN B. I-IURD. 

